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John L. Dart Library
Closed for Maintenance
Phone: (843) 722-7550
West Ashley Library
9 a.m. - 5 p.m.
Phone: (843) 766-6635
Folly Beach Library
9 a.m. - 2 p.m.
*open the 2nd and 4th Saturday
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Edgar Allan Poe/Sullivan's Island Library
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Phone: (843) 883-3914
Wando Mount Pleasant Library
9 a.m. - 5 p.m.
Phone: (843) 805-6888
Village Library
9 a.m. - 1 p.m.
Phone: (843) 884-9741
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Early evening low alcohol intake also worsens sleepiness-related driving impairment.
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- Author(s): Barrett, Pauline R.; Horne, James A.; Reyner, Louise A.
- Source:
Human Psychopharmacology: Clinical & Experimental. Jun2005, Vol. 20 Issue 4, p287-290. 4p. 1 Chart, 2 Graphs. - Source:
- Additional Information
- Subject Terms:
- Abstract: Following night-time sleep restriction, afternoon driving performance during the bi-circadian surge in afternoon sleepiness is markedly worsened by blood alcohol concentrations (BACs) well under most national driving limits. This study assessed how driving with this same sleep restriction and BACs (av 40 mg and 28 mg alcohol/100 ml blood at the beginning and end of drive, respectively) respond during the evening circadian rise in alertness. In a 2 × 2 (alcohol versus control drink [double blind] × normal night sleep versus sleep restricted), repeated-measures design, eight healthy young men drove for 2 h from 18:00 h, in a real-car simulator, on a monotonous, simulated highway. Driving impairment (lane drifting), subjective sleepiness and EEG measures of sleepiness were recorded. While sleep restriction alone produced significant impairments to evening driving and subjective sleepiness, alcohol alone did not. However, alcohol combined with sleep restriction significantly worsened all indices, although, this was less than that found for afternoon driving with identical interventions. Whereas low BACs may not affect driving in normally alert drivers in the early evening, the addition of moderate sleep restriction still produces a dangerous combination. Probably, there is no ‘safe’ level of alcohol intake for otherwise sleepy drivers, at any time of the day. Copyright © 2005 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Human Psychopharmacology: Clinical & Experimental is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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